INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO<sub>x</sub>

ZHOU Zhi-jun; ZHOU Cong-cong; SHAO Jie; LIU Jian-zhong; ZHOU Jun-hu; CEN Ke-faResearch Institute of Thermal Energy Engineering

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INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO_x

更新时间：2025-09-28

- INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO_x
- Thermal Power Generation Vol. 39, Issue 3, Pages: 23-29(2010)
- 作者机构：
  
  1. 浙江大学热能工程研究所
  2. 浙江大学热能工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.23
- Published：2010
- 稿件说明：
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ZHOU Zhi-jun, ZHOU Cong-cong, SHAO Jie, et al. INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO_x[J]. Thermal power generation, 2010, 39(3): 23-29.
DOI：

ZHOU Zhi-jun, ZHOU Cong-cong, SHAO Jie, et al. INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO_x[J]. Thermal power generation, 2010, 39(3): 23-29. DOI：

摘要

对新型低NOx旋流燃烧器

采用FLUENT冷态模拟和冷态试验相结合的方法得出了其冷态空气动力场。通过对新型低NOx旋流燃烧器的轴向速度、气流射程、回流区、射流边界等的分析

得出二次直流风速v=20 m/s时轴向速度衰减平缓且射程最长

回流区面积最大

回流长度狭长

扩展角比较小

不容易产生火焰贴壁和结渣。同时

给出了新型低NOx旋流燃烧器的轴向速度衰减和射流边界的经验公式。

Abstract

The cold-state dynamic field of a new-type low NOx swirl burner has been obtained through combination of FLUENT cold-state simulation with cold-state test.After analysis of axial velocity

air flow range

reverse flow area

and jet flow boundary etc.

the results obtained are as follows:under condition of the secondary air straight flow velocity v=20 m/s

the attenuation of axial velocity is gentle

and the jet range being the longest

the area of reverse flow being the largest

the length of reverse flow being the longest and narrowest

but the expansion angle is comparatively small

the flame isn't easily to stick onto the wall

and slagging isn't easily to occur.At the same time

the empirical formulae for attenuation of axial velocity and for boundary of jet flow in the new type low NOx swirl burner have been given.

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EXPERIMENTAL STUDY OF SWIRLED BURNER COLD FLOW FIELD FOR LOW HEAT VALUE COALBED METHANE

COLD-STATE TEST STUDY ON DSB TYPE LOW NO_x CYCLONE BURNER

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INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NOx

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INFLUENCE OF SECONDARY AIR STRAIGHT FLOW VELOCITY IN THE SWIRL BURNER UPON FORMATION OF NO_x